32 ENTOMOLOGICAL SOCIETY 



known in North America only from Alaska, and southward 

 on the Pacific slope through British Columbia, Washington, 

 and Oregon, to northern Idaho. According to Mr. Schwarz, 

 its occurrence is paralleled by the distribution of other genera 

 in Coleoptera, for instance, Necrophilus and Pinodytes of the 

 Silphidae. The eastern species of Paraplinthus was collected 

 on the underside of freshly cut spruce chips lying on the 

 ground. t 



THE SOUTH AMERICAN COCCIDJE OF THE GENUS 

 ERIOCOCCUS. 



By T. D. A. COCKERELL. 



It used to be supposed that Eriococcus was absent from 

 South America, but in recent years a few species have been 

 found in Brazil. Hempel cites three, but one of them, E. 

 armatus Hempel, is an Erium. Mr. Schrottky has sent me a 

 very ordinary-looking species from Villa Encarnacion, Para 

 guay (his No. 2508), which upon examination proves to be 

 quite different from those described from Brazil. However, I 

 do not see that it differs materially from E. dubins Ckll., de 

 scribed from specimens collected by Townsend in Mexico. The 

 South American species may accordingly be tabulated as 

 follows : 



Female sac very long (n mm.), of peculiar shape; third antennal joint 

 much longer than fourth; on Eugenia, etc., Brazil, .perplexus Hempel 



Female sac small, less than 5 mm. long, quite ordinary I 



i. Third antennal joint much longer than fourth; legs smaller, anterior 

 legs with femur plus trochanter 147 M, tibia 78 ; on Baccharis, 



Brazil braziliensis Ckll. 



Third antennal joint little longer than fourth; joints measuring in v>, 

 (20) 35-37, (3) 50, (4) 42-47, (5) 15-25, (6) 17-20, (7) 3Q-37; 

 anterior legs with femur plus trochanter 235^, tibia 112-117, tarsus 

 105; middle legs, tibia 125, tarsus 107; hind legs, tibia 125, tarsus 

 120; width of anterior femur 721".; claw 40 /* long, with a denticle 

 on inner side ; spines large and numerous, large ones over 60 M 

 long; mounted ? 2-2^ mm. long; antennae very rarely 6-jointed 

 by the union of 4 and 5 ; Paraguay : dubius Ckll. (var. ?) 



All three have 7-jointed antennae. The antennae of the Para 

 guayan insect are very like those of E. quercus Comst, and 

 E. tinsleyi Ckll., but the legs are not as in these species. 



